Please use this identifier to cite or link to this item: http://elar.urfu.ru/handle/10995/131567
Title: Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)3Al2Ga3O12: Ce Ceramics
Authors: Korzhik, M.
Retivov, V.
Bondarau, A.
Dosovitskiy, G.
Dubov, V.
Kamenskikh, I.
Karpuk, P.
Kuznetsova, D.
Smyslova, V.
Mechinsky, V.
Pustovarov, V.
Tavrunov, D.
Tishchenko, E.
Vasil’ev, A.
Issue Date: 2022
Publisher: MDPI
Citation: Korzhik, M, Retivov, V, Bondarau, A, Dosovitskiy, G, Dubov, V, Kamenskikh, I, Karpuk, P, Kuznetsova, D, Smyslova, V, Mechinsky, V, Pustovarov, V, Tavrunov, D, Tishchenko, E & Vasil’ev, A 2022, 'Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)3Al2Ga3O12: Ce Ceramics', Crystals, Том. 12, № 9, 1196, стр. 1196. https://doi.org/10.3390/cryst12091196
Korzhik, M., Retivov, V., Bondarau, A., Dosovitskiy, G., Dubov, V., Kamenskikh, I., Karpuk, P., Kuznetsova, D., Smyslova, V., Mechinsky, V., Pustovarov, V., Tavrunov, D., Tishchenko, E., & Vasil’ev, A. (2022). Role of the Dilution of the Gd Sublattice in Forming the Scintillation Properties of Quaternary (Gd,Lu)3Al2Ga3O12: Ce Ceramics. Crystals, 12(9), 1196. [1196]. https://doi.org/10.3390/cryst12091196
Abstract: Technological factors and processes contributing to the scintillation mechanism have been considered in quaternary garnet ceramics doped with Ce(Gd,Lu)3Al2Ga3O12. The super-stoichiometric additive of gadolinium in the material composition or its co-doping with a low concentration of Mg were found to be effective tools to suppress phosphorescence in the quaternary garnet, confirming that it is not an intrinsic property of the material. The Monte-Carlo simulation of electronic excitation transfer demonstrates that the hopping migration along the gadolinium sublattice plays an essential role in forming the scintillation kinetic parameters. Breaking the integrity of the gadolinium sublattice by substitution with heavier lutetium ions increases the role of self-trapped states in the excitation of Ce3+ ions, which ensures both an increase in the fraction of short ~20 ns and very long ~600 ns components in the scintillation kinetics. © 2022 by the authors.
Keywords: CERIUM
DECAY TIME
LIGHT YIELD
LUTETIUM
PHOSPHORESCENCE
QUATERNARY GARNET
SCINTILLATION
URI: http://elar.urfu.ru/handle/10995/131567
Access: info:eu-repo/semantics/openAccess
cc-by
License text: https://creativecommons.org/licenses/by/4.0/
SCOPUS ID: 85138621333
WOS ID: 000856335400001
PURE ID: 30944847
ea06cd6a-546b-4f64-bb03-288127b33c39
ISSN: 2073-4352
DOI: 10.3390/cryst12091196
Sponsorship: IREA
National Research Council Canada, NRC
Ministry of Education and Science of the Russian Federation, Minobrnauka, (075-15-2021-1353, FEUZ-2020-0060)
Russian Science Foundation, RSF, (21-12-00219)
Ministry of Science and Higher Education of the Russian Federation, (075-11-2021-070)
Midlands State University, MSU
Authors from NRC “Kurchatov Institute” and MSU acknowledge support from the Russian Ministry of Science and Education through grant No. 075-15-2021-1353. The access to the scientific equipment at shared research facilities at the Scientific Research Analytical Center of National Research Center “Kurchatov Institute”—IREA, with financial support by the Russian Ministry of Science and Higher Education (agreement no. 075-11-2021-070 of 19/08/2021) is also appreciated. The research at Ural Federal University was partially supported by the Ministry of Science and Higher Education of the Russian Federation (project FEUZ-2020-0060). The Monte-Carlo simulation of the migration was supported by the Russian Scientific Fund, grant 21-12-00219.
RSCF project card: 21-12-00219
Appears in Collections:Научные публикации ученых УрФУ, проиндексированные в SCOPUS и WoS CC

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